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#1 |
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Registered User
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EGR removal on a 96 Bronco
Does anyone know if there is a kit out there for removing the egr on a 96 Bronco with obd ll that will keep the check engine light off? I see them all over the internet for 95 and older models, but not for a 96???
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#5 |
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Harmful if swallowed
Join Date: Mar 2003
Location: Houston, TEXAS
Posts: 2,180
iTrader: (2) Bronco Info: 1996 XLT, 5.8L tow package, ranchos, stereo
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That thar emmisins junk takes up powar and make mah truck go slower, pull it out!
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SuperMotors Page theplaceholder.com - If you can handle it, the interweb is yours. |
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#7 |
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Biebs Ain't BabyDaddy!
Join Date: Jul 2006
Location: 'Murrica
Posts: 11,145
iTrader: (5) Bronco Info: '96 w/ 351, '93 w/ 302
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As far as I know, if you have a 96, and EGR is gone, you are going to be driving around with a CEL... Any loss of power you have from your EGR system can be offset a little by doing something like the sixlitre tune-up and advancing your timing.
I also don't know how the computer will handle a missing EGR. When the EGR valve went bad on my 96, my truck idled like hell until it was replaced.
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"In our age there is no such thing as 'keeping out of politics.' All issues are political issues, and politics itself is a mass of lies, evasions, folly, hatred and schizophrenia." -George Orwell |
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#9 |
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Registered User
![]() Join Date: Feb 2007
Location: Durham, CT
Posts: 604
iTrader: (3) Bronco Info: 96 Bronco 5.0 / JBA silver ceramic SS headers / E4OD / 4.56 / D44 SAS
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The pre-OBD-II trucks used an EGR position sensor. You could put a block off plate there and the computer would never know.
The ODB-II truck uses a sensor to determine the difference in vacuum between the intake and the exhaust track to tell how far open the EGR is. Blocking it will make teh computer think the EGR is stuck closed, and will throw the CEL as stated above and not run as well. Of course, I'm sick of replacing nearly $100 DPFS sensors nearly every year too! |
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#10 |
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Cleaning the trails
![]() Join Date: Oct 2006
Location: Alta Loma Ca
Posts: 930
iTrader: (3) Bronco Info: 96 Forest Service Retired 188K original miles on the odometer and still going strong
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Believe it or not, removing the EGR will cost you about 1 1/2 MPG. The exhaust gas it recirculates reburns and helps on the mileage. Mine was throwing a CEL because the small vaccum line that opens it had a crack in it. I ran three or four tanks and my mileage dropped consistenetly 1 1/2 mpg. After fixing the vacuum line, the mileage was back to the usual 13 1/2 mpg. The OBDII designs are made the get the best efficiency and meet the Fed guidlines for emissions. As soon as you start removing parts, the efficiency disappears. Unless you can reprogram the computer, it is not worth removing the smog equipment. Best bet is to make it breath easier, intake and exhaust, while keeping the smogg stuff in place.
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Looking for So Cal West Coast AAT Volunteers 96 Fed Gov't Surplus 5.8L XL 4" BDS Lift KI6FGI 146.520 |
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#11 |
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Registered User
Join Date: Jul 2009
Location: Orange Park, Florida
Posts: 189
iTrader: (1) Bronco Info: 1996 EB Eddie Bauer stock
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The previous owner of my bronco rebuilt the engine and tranny and in the process he took off all the EGR stuff. I started to look for the EGR parts to replace them but between the EGR parts and the other parts I would have to get to put back the EGR stuff it was going to cost me a bunch of money I don't have right now. I have a guy that has been a friend for a long time that is going to reflash and tune my truck for me and he tells me he can get it running right without the EGR stuff. I'm new to Ford and new to not having EGR on my vehicle so pardon my ignorance.
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#13 |
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Registered User
![]() Join Date: Feb 2007
Location: Durham, CT
Posts: 604
iTrader: (3) Bronco Info: 96 Bronco 5.0 / JBA silver ceramic SS headers / E4OD / 4.56 / D44 SAS
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Differential Pressure Feedback Sensor. It's located near the throttle body, attached with two bolts, black plastic with two holes attached, one slightly larger than the other, and a wire connector (3 wires if I recall correctly). It is the device that determines how open the EGR is based on the difference in vacuum between the intake and the exhaust.
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#14 | |||
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Satyr of the Midwest
Join Date: Nov 2005
Location: Ida & Grand Rapids, Michigan, a.k.a The Unemployment Capital of America
Posts: 17,760
iTrader: (2) Bronco Info: 1993 EB, 5.8L, BIO0 MAF, GT40Ps, Mustang cam, GT40 Intake, Custom Headers, Moates QuarterHorse
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EGR also helps to recover pumping losses and keeps peak combustion temperature lower. The PCM's programming is performed with ALL emissions equipment functioning fully. Any deviation from this will result in problems; perhaps not right away, but it will not have the intended consequence (which also makes me wonder if some people really know what an EGR valve is meant to do or when it actually is used).
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![]() Bar none, this is the most-accurate way thus far of metering EGR flow into the manifold. Refer to Bernoulli's Principle & Equations, and the Pitot Tube. The sonic (EVP) method is an educated guess at best, and was fine for the earlier versions of EEC control (read: pre-1994-ish when OBD-II was on the horizon). With 1994+ models (some not until 1996), gone were the guessworks of the past; fuel-economy modes of operation within the PCM programming were taken away, and more-accurate means of measurement were required all around (MAF is a perfect example too). These are why the air pump is gone on later models; it was NOT because of more-efficient converters, since those later models used two TWCs in series. There is another version, never used on our trucks, that's called a PFE. It uses only one tube, but is not nearly as accurate as the DPFE system.
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SigEpBlue Wheelin' across Michigan from Ida to Grand Rapids, baby! ![]() Quote:
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#18 |
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Fullsize Member
![]() Join Date: Jan 2011
Location: Orlando, FL
Posts: 2,380
iTrader: (1) Bronco Info: 1994 Bronco Eddie Bauer edition, 302 MAF, E4OD
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Junk Yards are your Friend! Use them!
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1994 EB Bronco, 302 MAF, E4OD, BW1356, box stock "Demanding something free on top of a discount is just being a Democrat. - Steve83" My Build Thread - http://www.fullsizebronco.com/forum/...d.php?t=191067 |
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#19 |
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Registered User
Join Date: Jan 2013
Location: Lenoir City, TN
Posts: 80
iTrader: (0) Bronco Info: 1988 XLT 4.9L - M5OD Manual - 32/11.50 AT's
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I dropped off my 91 Bronco at the shop one day with a set of hooker headers to be installed (supposedly to be an exact fit). When I picked it up they informed me they had to remove both the EGR and the smog pump to make them fit. Luckily I didn't have any negative side effects. My friend in high school removed his EGR for headers and it had a terrible surge at idle
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